DE69213452T2 - METHOD FOR PRODUCING 3,4-DIHYDROXY-5-NITROBENZALDEHYDE - Google Patents

METHOD FOR PRODUCING 3,4-DIHYDROXY-5-NITROBENZALDEHYDE

Info

Publication number
DE69213452T2
DE69213452T2 DE69213452T DE69213452T DE69213452T2 DE 69213452 T2 DE69213452 T2 DE 69213452T2 DE 69213452 T DE69213452 T DE 69213452T DE 69213452 T DE69213452 T DE 69213452T DE 69213452 T2 DE69213452 T2 DE 69213452T2
Authority
DE
Germany
Prior art keywords
pct
nitrobenzaldehyde
date jan
dihydroxy
sec
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69213452T
Other languages
German (de)
Other versions
DE69213452D1 (en
Inventor
Erkki Honkanen
Stig Lindholm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orion Oyj
Original Assignee
Orion Yhtyma Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orion Yhtyma Oy filed Critical Orion Yhtyma Oy
Publication of DE69213452D1 publication Critical patent/DE69213452D1/en
Application granted granted Critical
Publication of DE69213452T2 publication Critical patent/DE69213452T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/44—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by —CHO groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups

Abstract

PCT No. PCT/FI92/00192 Sec. 371 Date Jan. 6, 1994 Sec. 102(e) Date Jan. 6, 1994 PCT Filed Jun. 18, 1992 PCT Pub. No. WO93/00323 PCT Pub. Date Jan. 7, 1993.A method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde by reacting 4-hydroxy-3-methoxy-5-nitrobenzaldehyde with a strong nucleophilic agent which may be created by reacting an aromatic mercapto compound with a strong organic or inorganic alkali metal base such as lithium hydroxide. The reaction is performed at elevated temperatures using an aprotic polar solvent. It is preferably carried out in an inert atmosphere.
DE69213452T 1991-06-20 1992-06-18 METHOD FOR PRODUCING 3,4-DIHYDROXY-5-NITROBENZALDEHYDE Expired - Fee Related DE69213452T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919113431A GB9113431D0 (en) 1991-06-20 1991-06-20 Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
PCT/FI1992/000192 WO1993000323A1 (en) 1991-06-20 1992-06-18 Method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde

Publications (2)

Publication Number Publication Date
DE69213452D1 DE69213452D1 (en) 1996-10-10
DE69213452T2 true DE69213452T2 (en) 1997-01-23

Family

ID=10697088

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69213452T Expired - Fee Related DE69213452T2 (en) 1991-06-20 1992-06-18 METHOD FOR PRODUCING 3,4-DIHYDROXY-5-NITROBENZALDEHYDE

Country Status (23)

Country Link
US (1) US5382699A (en)
EP (1) EP0589948B1 (en)
JP (1) JP3048639B2 (en)
KR (1) KR100241132B1 (en)
AT (1) ATE142192T1 (en)
AU (1) AU650149B2 (en)
BG (1) BG62163B1 (en)
CA (1) CA2110583C (en)
CZ (1) CZ281933B6 (en)
DE (1) DE69213452T2 (en)
DK (1) DK0589948T3 (en)
EE (1) EE03068B1 (en)
ES (1) ES2091472T3 (en)
FI (1) FI104715B (en)
GB (1) GB9113431D0 (en)
GR (1) GR3021052T3 (en)
HU (1) HU211121B (en)
NO (1) NO178298C (en)
PL (1) PL169522B1 (en)
RO (1) RO115157B1 (en)
RU (1) RU2098405C1 (en)
SK (1) SK281800B6 (en)
WO (1) WO1993000323A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9419274D0 (en) * 1994-09-23 1994-11-09 Orion Yhtymae Oy New method for the preparation of 3,4-dihydroxy-5-nitrobenzaldehyde
US7339060B2 (en) 2005-03-23 2008-03-04 Resolution Chemicals, Ltd. Preparation of cabergoline
US20070197576A1 (en) * 2006-02-08 2007-08-23 Resolution Chemicals Limited Production of Cabergoline and Novel Polymorphic Form Thereof
EP2251323B1 (en) 2009-05-14 2014-04-23 F.I.S.- Fabbrica Italiana Sintetici S.p.A. Method for the purification of entacapone

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL279980A (en) * 1961-06-21
US4009210A (en) * 1975-05-07 1977-02-22 Gulf Oil Corporation Process for manufacturing 3,5-ditert.butyl-4-hydroxybenzaldehyde by formylation of 2,6-ditert.butylphenol
DK175069B1 (en) * 1986-03-11 2004-05-24 Hoffmann La Roche Pyrocatechol derivatives
FI864875A0 (en) * 1986-11-28 1986-11-28 Orion Yhtymae Oy NYA FARMAKOLOGISKT AKTIVA FOERENINGAR, DESSA INNEHAOLLANDE KOMPOSITIONER SAMT FOERFARANDE OCH MELLANPRODUKTER FOER ANVAENDNING VID FRAMSTAELLNING AV DESSA.
YU213587A (en) * 1986-11-28 1989-06-30 Orion Yhtymae Oy Process for obtaining new pharmacologic active cateholic derivatives
GB2238047B (en) * 1989-11-03 1993-02-10 Orion Yhtymae Oy Stable polymorphic form of (e)-n,n-diethyl-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylamide and the process for its preparation

Also Published As

Publication number Publication date
GR3021052T3 (en) 1996-12-31
NO178298C (en) 1996-02-28
NO178298B (en) 1995-11-20
GB9113431D0 (en) 1991-08-07
EE03068B1 (en) 1998-02-16
BG62163B1 (en) 1999-04-30
DE69213452D1 (en) 1996-10-10
NO934664D0 (en) 1993-12-16
AU1898092A (en) 1993-01-25
SK281800B6 (en) 2001-08-06
KR100241132B1 (en) 2000-03-02
CA2110583A1 (en) 1993-01-07
JP3048639B2 (en) 2000-06-05
BG98285A (en) 1994-08-30
HUT66450A (en) 1994-11-28
FI935657A0 (en) 1993-12-16
PL169522B1 (en) 1996-07-31
AU650149B2 (en) 1994-06-09
CA2110583C (en) 2003-04-08
EP0589948A1 (en) 1994-04-06
JPH06509064A (en) 1994-10-13
HU9303667D0 (en) 1994-04-28
FI935657A (en) 1993-12-16
RU2098405C1 (en) 1997-12-10
NO934664L (en) 1993-12-16
WO1993000323A1 (en) 1993-01-07
RO115157B1 (en) 1999-11-30
US5382699A (en) 1995-01-17
FI104715B (en) 2000-03-31
KR940701378A (en) 1994-05-28
DK0589948T3 (en) 1996-09-30
CZ280493A3 (en) 1994-04-13
CZ281933B6 (en) 1997-04-16
ATE142192T1 (en) 1996-09-15
HU211121B (en) 1995-10-30
SK144693A3 (en) 1994-11-09
ES2091472T3 (en) 1996-11-01
EP0589948B1 (en) 1996-09-04

Similar Documents

Publication Publication Date Title
NZ250170A (en) Insecticidal n,n'-diacylhydrazines and compositions
ATE117381T1 (en) METHOD FOR PRODUCING ZINC PHOSPHATE COATINGS CONTAINING MANGANEOUS AND MAGNESIUM.
DE69306843D1 (en) Methods of removing siloxane; dissolved in the solvent used in the production of trimethoxysilane from methanol and silicon
DE69213452D1 (en) METHOD FOR PRODUCING 3,4-DIHYDROXY-5-NITROBENZALDEHYDE
IL89559A0 (en) Composition and method for repelling birds and animal pests
ATE114317T1 (en) PROCESS FOR THE PREPARATION OF 10-G(B)-H-STEROIDS.
DE60325631D1 (en) PROCESS FOR THE PREPARATION OF 2,6-DIHALO-PARA-TRIFLUOROMETHYLANILINE
DE59003965D1 (en) Process for the preparation of benzaldehydes.
KR840005139A (en) Method for preparing pyrazolopyridine derivative
BG105825A (en) Process for preparing alendronic acid
EP0337600A3 (en) Benzoylurea derivative, process for producing the same, insecticide containing the same, reaction intermediate of the same and process for producing the intermediate
DE502005000278D1 (en) Process for the preparation of solid tris (2,3-dibromopropyl) isocyanurate
RU93058510A (en) METHOD FOR PRODUCING 3,4-DIHYDROXY-5-NITROBENZALDEHYDE
ATE324366T1 (en) METHOD FOR PRODUCING 3-PYRROLINE-2-CARBOXYLIC ACID DERIVATIVES
DE3856371D1 (en) Process for the preparation of 1-methylindazole-3-carboxylic acid
ATE255101T1 (en) METHOD FOR PRODUCING AROMATIC COMPOUNDS CONTAINING A HETEROCYCLIC SYSTEM
ATE80619T1 (en) PROCESS FOR THE PREPARATION OF UNSYMMETRIC DIHYDROPYRIDINES.
KR860004018A (en) Method for preparing 3-oxymino diphenyl ether derivative
ATE504574T1 (en) METHOD FOR PRODUCING 1-METHYLINDAZOLE-3-CARBOXYLIC ACID
ES2150069T3 (en) A PROCEDURE FOR THE PREPARATION OF ADIPIC ACID.
JPS6445393A (en) Estradiol derivative
DK1109782T3 (en) Process for Preparation of N-Protected Azetidine-2-Carboxylic Acids (AzeOHs)
ES2144407T3 (en) ARALKYLAMINOPYRIMIDINE DERIVATIVES, METHOD FOR PREPARATION AND COMPOSITION TO CONTROL HARMFUL ORGANISMS.
ATE104266T1 (en) 1-BROMO-3-CHLORO-1,2-DIARYL-2-PROPANOLS, PROCESS FOR THE STEREOSELECTIVE PREPARATION OF ERYTHRO-1- BROMO-3-CHLORO-1,2-DIARYL-2-PROPANOLS AND THEIR CONVERSION TO AZOLYLMETHYLOXIRANES.
TH44569A (en) Methods and instruments for the preparation of suitable monofunctional aromatic chloroformates for use as chain-stopping agents.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ORION CORP., ESPOO, FI

8339 Ceased/non-payment of the annual fee